US3593938A - Method and apparatus for processing strip - Google Patents

Method and apparatus for processing strip Download PDF

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US3593938A
US3593938A US864744A US3593938DA US3593938A US 3593938 A US3593938 A US 3593938A US 864744 A US864744 A US 864744A US 3593938D A US3593938D A US 3593938DA US 3593938 A US3593938 A US 3593938A
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Prior art keywords
strip
mandrel
sleeve
leader
coiler
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US864744A
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Craig B Watt
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United States Steel Corp
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United States Steel Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/32—Tongs or gripping means specially adapted for reeling operations
    • B21C47/323—Slits or pinces on the cylindrical wall of a reel or bobbin, adapted to grip the end of the material being wound
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/28—Drums or other coil-holders
    • B21C47/30—Drums or other coil-holders expansible or contractible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • C23G3/027—Associated apparatus, e.g. for pretreating or after-treating

Definitions

  • Patented United States Patent [72] Inventor Craig B. Watt 3,365,144 1/1968 Daub 242/78.1 [2 1 pp No gzfiiz Primary ExammerGeorge F. Mautz 22 Filed o:.s, 1969 July 20,1971
  • PATENT M20 sum 1 or 2 PROCESS ING L l/VE INVENTO/P ERA/6 B WATT A Ira/nay METHOD AND APPARATUS lF Ulllt llhOChlSdilNG S'll'itll?
  • This invention relates to a method and apparatus for processing strip and more particularly to continuously picltling steel strip.
  • the strip In the processing of the strip, it is placed on an uncoiler in coil form and fed through the pickling line to a coiler on the exit end of the line.
  • the trailing end of one coil of strip is welded or otherwise fastened to the leading end of a second coil so that the process is continuous.
  • a leader strip also in coil form, is attached to the trailing end of the last prime coil end and pulled through the line and then cut off from the prime product and its leading end attached to the coiler.
  • the leader strip remains in the pickling line during shut down.
  • a prime coil is fastened to the trailing end of the leader strip and pulled through the line.
  • coilers and uncoilers having an expandable mandrel including gripping means for the leading end of the strip.
  • the diameter of the coiler mandrel is less than the diameter of the uncoiler mandrel.
  • Another object is to provide strip coiling apparatus in which the coil formed has a larger inside diameter than the coiler mandrel.
  • FIG. 1 is a schematic view of a strip processing line
  • FIG. 2 is a perspective view of a sleeve used in the practice of my invention
  • FIG. 3 is a view of the sleeve of FIG. 2 mounted on a coiler mandrel in collapsed position;
  • FIG. 4 is a view, similar to FIG. 3, showing the mandrel expanded.
  • FIG. 1 A similar uncoiler l is provided adjacent coiler 22.
  • a welder 6 is provided on the exit end of the uncoilers.
  • Strip 8 to be processed passes from the uncoiler 2 to a processing line 8 and then to a shear l and a coiler 12.
  • a similar coiler lid is provided adjacent the coiler 112. Both coilers are of the Elipanding mandrel type. The mandrels of the coilers are of smaller diameter than those of the uncoilers.
  • a leader strip in coil form is placed on the unoccupied uncoiler and its leading end welded to the trailing end of the strip being processed and pulled through the line. After the leading end of the leader strip reaches the shear lid it is separated from the trailing end of the prime strip and then connected to the unoccupied coiler.
  • the leading end of a prime strip is welded to the trailing end of the leader strip by the welder 6 and the prime strip pulled through the line. The trailing end of the leader strip is then cut from the prime strip by the shear 10. The processing then continues as before.
  • the parts and operation so far described are conventional.
  • I provide a resilient sleeve 16 having a slot lid extending across its width.
  • Aluminum has proved to be a very acceptable material for the sleeve.
  • the sleeve lid has an expanded internal diameter substantially equal to the expanded diameter of the coiler mandrel and an unexpanded internal diameter greater than the unexpanded diameter of the coiler mandrel.
  • the expanded external diameter of the sleeve 16 is also greater than the unexpanded diameter of the uncoiler mandrel.
  • the recoiler mandrel has a diameter of 22% inches and an expanded diameter of 24 inches
  • the uncoiler mandrel has a col lapsed diameter of 25 inches and an expanded diameter of 30 inches
  • the sleeve in has a wall thickness of We inches, an expanded outer diameter of 27 inches and an unexpanded outside diameter of 26% inches.
  • any suitable standard coiler mandrel may be used. That shown schematically in H03. 3 and 4 is of the type disclosed in Wingard Pat. No. 2,920,837 dated Jan. 12, I960.
  • the man drel includes a generally square shaft 20 having a radial slot 22 in each of three sides. A tongue 24 of a quadrant segment 26 is received in each slot 22. T he fourth side of shaft 20 has a cylindrical groove 28 in which segments 30 are pivotally mounted. A gripping jaw M is pivotally mounted in each segment.
  • a mandrel expanding rod 32 received within shaft 20 has a spider 3d connected thereto. Wedge bars 36 arranged between adjacent segments 26 and between each segment 30 and segment 26 adjacent thereto are slidably mounted in radial grooves 38 in shaft 2%.
  • the spider 341 has four arms M), one for operating each wedge bar 36.
  • the operation is the same as that described above.
  • the sleeve 16 prior to winding the leader strip on the coiler, the sleeve 16 is placed over the collapsed mandrel with the slot 1% in alignment with the opening between gripping jaws 31 as shown in FIG. 3.
  • the leader strip S is fed through the slot 18 and between the jaws 31 and the mandrel expanded in the usual manner by moving rod 32 axially which moves the wedge bars 36 outwardly so that the strip is gripped between jaws 3i as shown in FllG. 4.
  • the coiler is then operated to wind a portion of the leader strip thereon. Movement of the leader strip is discontinued while its trailing end is still on the uncoiler or at least not past the welder 6.
  • the leader strip remains in this position as long as the processing line is shut down. W hen it is desired to start the processing line in operation, a prime coil is fastened to the trailing end of the leader strip and the leader strip pulls it through the processing line. The shear W then separates the trailing end of the leader strip from the prime strip and the operation then proceeds as before. The coiled leader strip is removed from the coiler mandrel and is ready for reuse.
  • a resilient sleeve having a slot extending across its width, said sleeve having an expanded internal diameter substantially equal to the expanded diameter of said coilcr man drel and an unexpanded internal diameter greater than the unexpanded diameter of said mandrel.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

In the continuous processing of strip in which the expandable uncoiler mandrel at the entry end of the processing line has a larger diameter than the expandable coiler mandrel at the exit end of the line a resilient sleeve is provided to permit reuse of a leader strip which pulls prime strip through the line after shut downs. The resilient sleeve has a slot extending across its width, an internal diameter greater than the unexpanded diameter of the coiler mandrel and an external diameter greater than the unexpanded diameter of the uncoiler diameter. The sleeve is placed on the uncoiler mandrel prior to coiling the leader strip and then removed from the coiled leader strip to permit placing the coil on the uncoiler mandrel.

Description

. [45] Patented United States Patent [72] Inventor Craig B. Watt 3,365,144 1/1968 Daub 242/78.1 [2 1 pp No gzfiiz Primary ExammerGeorge F. Mautz 22 Filed o:.s, 1969 July 20,1971
[73] Assignee United StatesSteel Corporation [54] METHOD AND APPARATUS FOR PROCESSING 2,703,685 3/1955 Stephan:
6 PROCESS/N6 Assistant Examiner-Gregory At Walters Alt0rneyMartin J. Carroll ABSTRACT: In the continuous processing of strip in which the expandable uncoiler mandrel at the entry end of the processing line has a larger diameter than the expandable 'coiler mandrel at the exit end of the line a resilient sleeve is provided to permit reuse of a leader strip which pulls prime strip through the line after shut downs. The resilient sleeve has a slot extending across its width, an internal diameter greater than the unexpanded diameter of the coiler mandrel and an external diameter greater than the unexpanded diameter of the uncoiler diameter. The sleeve is placed on the uncoiler mandrel prior to coiling the leader strip and then removed from the,coiled leader strip to permit placing the coil on the uncoiler mandrel.
PATENT M20 sum 1 or 2 PROCESS ING L l/VE INVENTO/P ERA/6 B WATT A Ira/nay METHOD AND APPARATUS lF Ulllt llhOChlSdilNG S'll'itll? This invention relates to a method and apparatus for processing strip and more particularly to continuously picltling steel strip. In the processing of the strip, it is placed on an uncoiler in coil form and fed through the pickling line to a coiler on the exit end of the line. The trailing end of one coil of strip is welded or otherwise fastened to the leading end of a second coil so that the process is continuous. However, when the line is shut down for a substantial period of time, it is necessary to remove all prime product from the line. A leader strip, also in coil form, is attached to the trailing end of the last prime coil end and pulled through the line and then cut off from the prime product and its leading end attached to the coiler. The leader strip remains in the pickling line during shut down. When the line is again started in operation, a prime coil is fastened to the trailing end of the leader strip and pulled through the line. It is common to use coilers and uncoilers having an expandable mandrel including gripping means for the leading end of the strip. In some processing lines, the diameter of the coiler mandrel is less than the diameter of the uncoiler mandrel. Thus, it is not possible to reuse the leader strip because it cannot be placed on the uncoiler mandrel. While the leader strip is not made of prime material, it does have considerable value so that it is desirable to eliminate this loss.
It is therefore an object of my invention to provide a method of processing strip continuously in which the leader strip may be readily reused.
Another object is to provide strip coiling apparatus in which the coil formed has a larger inside diameter than the coiler mandrel.
These and other objects will be more apparent after referring to the following specification and attached drawings, in which:
FIG. 1 is a schematic view of a strip processing line;
FIG. 2 is a perspective view of a sleeve used in the practice of my invention;
FIG. 3 is a view of the sleeve of FIG. 2 mounted on a coiler mandrel in collapsed position; and
FIG. 4 is a view, similar to FIG. 3, showing the mandrel expanded.
Referring more particularly to the drawings reference till-- meral 2 indicates an uncoiler having an expandable mandrel. A similar uncoiler l is provided adjacent coiler 22. A welder 6 is provided on the exit end of the uncoilers. Strip 8 to be processed, passes from the uncoiler 2 to a processing line 8 and then to a shear l and a coiler 12. A similar coiler lid is provided adjacent the coiler 112. Both coilers are of the Elipanding mandrel type. The mandrels of the coilers are of smaller diameter than those of the uncoilers. After the strip is unwound from uncoiler 2, its trailing end is welded by the welder 6 to the leading end of a second coil mounted on uncoiler 4 and the processing of the strip is then continued. When the desired amount of strip has accumulated on the coiler 12 the shear lllll separates it from the remainder of the strip which is then fed to the coiler 1M and wound thereon. The operation is continued in this manner with coils of strip being unwound alternately from uncoilers 2 and d and wound alternately on coilers i2 and lid. When the line is to be shut down for any long period of time, a leader strip in coil form is placed on the unoccupied uncoiler and its leading end welded to the trailing end of the strip being processed and pulled through the line. After the leading end of the leader strip reaches the shear lid it is separated from the trailing end of the prime strip and then connected to the unoccupied coiler. When the line is again started in operation the leading end of a prime strip is welded to the trailing end of the leader strip by the welder 6 and the prime strip pulled through the line. The trailing end of the leader strip is then cut from the prime strip by the shear 10. The processing then continues as before. The parts and operation so far described are conventional.
According to my invention I provide a resilient sleeve 16 having a slot lid extending across its width. Aluminum has proved to be a very acceptable material for the sleeve. The sleeve lid has an expanded internal diameter substantially equal to the expanded diameter of the coiler mandrel and an unexpanded internal diameter greater than the unexpanded diameter of the coiler mandrel. The expanded external diameter of the sleeve 16 is also greater than the unexpanded diameter of the uncoiler mandrel. In one specific installation the recoiler mandrel has a diameter of 22% inches and an expanded diameter of 24 inches, the uncoiler mandrel has a col lapsed diameter of 25 inches and an expanded diameter of 30 inches, and the sleeve in has a wall thickness of We inches, an expanded outer diameter of 27 inches and an unexpanded outside diameter of 26% inches.
Any suitable standard coiler mandrel may be used. That shown schematically in H03. 3 and 4 is of the type disclosed in Wingard Pat. No. 2,920,837 dated Jan. 12, I960. The man drel includes a generally square shaft 20 having a radial slot 22 in each of three sides. A tongue 24 of a quadrant segment 26 is received in each slot 22. T he fourth side of shaft 20 has a cylindrical groove 28 in which segments 30 are pivotally mounted. A gripping jaw M is pivotally mounted in each segment. Bali. A mandrel expanding rod 32 received within shaft 20 has a spider 3d connected thereto. Wedge bars 36 arranged between adjacent segments 26 and between each segment 30 and segment 26 adjacent thereto are slidably mounted in radial grooves 38 in shaft 2%. The spider 341 has four arms M), one for operating each wedge bar 36.
in processing strip according to my invention the operation is the same as that described above. However, prior to winding the leader strip on the coiler, the sleeve 16 is placed over the collapsed mandrel with the slot 1% in alignment with the opening between gripping jaws 31 as shown in FIG. 3. The leader strip S is fed through the slot 18 and between the jaws 31 and the mandrel expanded in the usual manner by moving rod 32 axially which moves the wedge bars 36 outwardly so that the strip is gripped between jaws 3i as shown in FllG. 4. The coiler is then operated to wind a portion of the leader strip thereon. Movement of the leader strip is discontinued while its trailing end is still on the uncoiler or at least not past the welder 6. The leader strip remains in this position as long as the processing line is shut down. W hen it is desired to start the processing line in operation, a prime coil is fastened to the trailing end of the leader strip and the leader strip pulls it through the processing line. The shear W then separates the trailing end of the leader strip from the prime strip and the operation then proceeds as before. The coiled leader strip is removed from the coiler mandrel and is ready for reuse. This is possible because, prior to placing the coiled leader strip on one of the uncoilers, the sleeve to is removed from the inside of the coil by means of a crane operated C-iiOOlt, so that the inside diameter of the coil of leader strip has a greater diameter than the collapsed diameter of the uncoiler mandrel.
While one embodiment of my invention has been shown and described, it will be apparent that other adaptations and modifications may be made.
Iclaim:
l. The method of processing strip in a processing line having an uncoiler with an expandable mandrel at its entry end and a coiler with an expandabie mandrel at its exit end, the uncoiler mandrel having a larger diameter than the coiler mandrel; which method comprises providing a resilient sleeve having a slot extending across its width, said sleeve having an expanded internal diameter substantially equal to the expanded diameter of said coiler mandrel and an external diameter greater than the unexpanded diameter of said uncoiler mandrel, placing said sleeve on said coiler mandrel, feeding a leader strip through said processing line and coiling its leading end on said coiler around said sleeve, attaching the leading end of a strip to be processed to the trailing end of said leader strip, pulling the leader strip and attached strip through the processing line until the leading end of the attached strip has passed through attached strip, then removing said leader strip from said coiler mandrel and said sleeve, processing said strip to be processed, placing said coiled leader strip on said uncoiler mandrel, then attaching the leading end of said leader strip to the trailing end of a strip in said processing line and pulling it partially through said line, and then separating the leader strip from the trailing end of the processed strip.
2. The method of claim 1 which includes shutting down the processing line with the leader strip extending therethrough, then attaching a coil of strip to be processed to the trailing end of said leader strip in the processing line, then pulling the leader strip and attached strip through the processing line until the leading end of the attached strip has passed through the processing line, then separating said leader strip from the attached strip and then removing said leader strip from said coiler mandrel and said sleeve.
3. In combination with a strip coilcr having a collapsible mandrel, a resilient sleeve having a slot extending across its width, said sleeve having an expanded internal diameter substantially equal to the expanded diameter of said coilcr man drel and an unexpanded internal diameter greater than the unexpanded diameter of said mandrel.
4. The combination of claim 3 in which said mandrel has a slot therein for receiving said strip, and said sleeve slot is of

Claims (5)

1. The method of processing strip in a processing line having an uncoiler with an expandable mandrel at its entry end and a coiler with an expandable mandrel at its exit end, the uncoiler mandrel having a larger diameter than the coiler mandrel; which method comprises providing a resilient sleeve having a slot extending across its width, said sleeve having an expanded internal diameter substantially equal to the expanded diameter of said coiler mandrel and an external diameter greater than the unexpanded diameter of said uncoiler mandrel, placing said sleeve on said coiler mandrel, feeding a leader strip through said processing line and coiling its leading end on said coiler around said sleeve, attaching the leading end of a strip to be processed to the trailing end of said leader strip, pulling the leader strip and attached strip through the processing line until the leading end of the attached strip has passed through the processing line, then separating said leader strip from the attached strip, then removing said leader strip from said coiler mandrel and said sleeve, processing said strip to be processed, placing said coiled leader strip on said uncoiler mandrel, then attaching the leading end of said leader strip to the trailing end of a strip in said processing line and pulling it partially through said line, and then separating the leader strip from the trailing end of the processed strip.
2. The method of claim 1 which includes shutting down the processing line with the leader strip extending therethrough, then attaching a coil of strip to be processed to the trailing end of said leader strip in the processing line, then pulling the leader strip and attached strip through the processing line until the leading end of the attached strip has passed through the processing line, then separating said leader strip from the attached strip and then removing said leader strip from said coiler mandrel and said sleeve.
3. In combination with a strip coiler having a collapsible mandrel, a resilient sleeve having a slot extending across its width, said sleeve having an expanded internal diameter substantially equal to the expanded diameter of said coiler mandrel and an unexpanded internal diameter greater than the unexpanded diameter of said mandrel.
4. The combination of claim 3 in which said mandrel has a slot therein for receiving said strip, and said sleeve slot is of sufficient width to receive said strip.
5. The combination of claim 4 in which said sleeve is made of aluminum.
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3823892A (en) * 1972-09-05 1974-07-16 Didde Glaser Inc Expandable roll core shaft unit
US4123011A (en) * 1975-02-19 1978-10-31 Hitachi, Ltd. Coil unwind and wind-up method and apparatus therefor
US4160531A (en) * 1977-10-25 1979-07-10 Brammall, Inc. Apparatus and methods for untelescoping and rewinding reels of sheet material such as steel
US4445649A (en) * 1981-06-15 1984-05-01 Northern Telecom Limited Adjustable reel
US4767077A (en) * 1986-02-03 1988-08-30 Hiroshi Kataoka Support shaft for winding/unwinding sheets
US5211349A (en) * 1991-09-10 1993-05-18 Usx Corporation Sleeve and reel for winding strip into coil
US5785272A (en) * 1996-11-05 1998-07-28 Kvaerner U.S. Inc. Coiler spool with built-in gripper slot
US5878973A (en) * 1997-02-05 1999-03-09 Ebara Corporation Tool for peeling turntable polishing cloth
US20020190152A1 (en) * 2001-05-08 2002-12-19 Yoshihisa Haraikawa Roll product and winding method
EP1270102A2 (en) * 2001-06-25 2003-01-02 Kapman AB Bobbin for the winding of band material
US20030230663A1 (en) * 2002-04-26 2003-12-18 Alain Douaud Method and installation for treatment of a band product

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2703685A (en) * 1954-05-21 1955-03-08 United States Steel Corp Gripper jaws for expansible mandrel strip coiling reel
US3365144A (en) * 1965-07-17 1968-01-23 Siegener Machinenbau G M B H Method of and apparatus for continuously feeding coils of strip-like material to a processing line

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2703685A (en) * 1954-05-21 1955-03-08 United States Steel Corp Gripper jaws for expansible mandrel strip coiling reel
US3365144A (en) * 1965-07-17 1968-01-23 Siegener Machinenbau G M B H Method of and apparatus for continuously feeding coils of strip-like material to a processing line

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3823892A (en) * 1972-09-05 1974-07-16 Didde Glaser Inc Expandable roll core shaft unit
US4123011A (en) * 1975-02-19 1978-10-31 Hitachi, Ltd. Coil unwind and wind-up method and apparatus therefor
US4160531A (en) * 1977-10-25 1979-07-10 Brammall, Inc. Apparatus and methods for untelescoping and rewinding reels of sheet material such as steel
US4445649A (en) * 1981-06-15 1984-05-01 Northern Telecom Limited Adjustable reel
US4767077A (en) * 1986-02-03 1988-08-30 Hiroshi Kataoka Support shaft for winding/unwinding sheets
US5211349A (en) * 1991-09-10 1993-05-18 Usx Corporation Sleeve and reel for winding strip into coil
US5785272A (en) * 1996-11-05 1998-07-28 Kvaerner U.S. Inc. Coiler spool with built-in gripper slot
US5878973A (en) * 1997-02-05 1999-03-09 Ebara Corporation Tool for peeling turntable polishing cloth
US20020190152A1 (en) * 2001-05-08 2002-12-19 Yoshihisa Haraikawa Roll product and winding method
EP1270102A2 (en) * 2001-06-25 2003-01-02 Kapman AB Bobbin for the winding of band material
EP1270102A3 (en) * 2001-06-25 2004-04-07 Kapman AB Bobbin for the winding of band material
US20030230663A1 (en) * 2002-04-26 2003-12-18 Alain Douaud Method and installation for treatment of a band product

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